P0455 2009 Nissan Altima Sedan Code - EVAP Control System Gross Leak Detected
Quick Answer
This diagnosis detects leaks in the Evaporative Emission System (EVAP) purge line using engine intake manifold vacuum. Common causes include Missing or loose fuel cap, Incorrect fuel filler cap used, Fuel filler cap remains open or fails to close. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
- What it means
- P0455 2009 Nissan Altima Sedan indicates EVAP Control System Gross Leak Detected.
- Common causes
- Common causes include Missing or loose fuel cap, Incorrect fuel filler cap used, Fuel filler cap remains open or fails to close.
- Severity
- Low - monitor the vehicle and repair when practical.
- Can I drive?
- The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
Code P0455 2009 Nissan Altima Sedan Description
The vacuum cut valve bypass valve is opened to clear the line between the fuel tank and the EVAP canister purge volume control solenoid valve. The EVAP canister vent control valve will then be closed to shut the EVAP purge line off. The EVAP canister purge volume control solenoid valve is opened to depressurize the EVAP purge line using intake manifold vacuum. After this depressurization is implemented, the EVAP canister purge volume control solenoid valve will be closed.
What are the Possible Causes of the DTC P0455 2009 Nissan Altima Sedan?
- Missing or loose fuel cap
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- EVAP canister or fuel tank leaks
- EVAP system hose leaking
- Fuel tank leaking
How to Fix the DTC P0455 2009 Nissan Altima Sedan?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
There is a factory Nissan service bulletin to help diagnose the P0455 code:
Nissan Factory Service Bulletin OBDII Code P0455
There is a factory Nissan service bulletin for the 2009 Nissan Altima Sedan:
2009 Nissan Altima Sedan Factory Service Bulletin OBDII Code P0455
User Submitted Video
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0455 2009 Nissan Altima Sedan code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0455 2009 Nissan Altima Sedan Code
1. What does OBDII code P0455 mean for a 2009 Nissan Altima Sedan?
The code P0455 indicates that the EVAP control system has detected a gross leak.
2. What are the common symptoms of a P0455 code on a 2009 Nissan Altima Sedan?
Common symptoms include the check engine light coming on, a strong fuel odor near the vehicle, and potential issues with overall engine performance.
3. What are the possible causes of a P0455 code on a 2009 Nissan Altima Sedan?
Potential causes include a loose or damaged gas cap, a cracked or punctured EVAP system hose, a faulty EVAP canister, or a malfunctioning purge valve.
4. How can I diagnose a P0455 code on my 2009 Nissan Altima Sedan?
Diagnosing a P0455 code typically involves visually inspecting the EVAP system components, checking the gas cap for tightness and damage, and using a scan tool to monitor system pressure readings.
5. Can I continue driving my 2009 Nissan Altima Sedan with a P0455 code?
While the vehicle may still be operational with a P0455 code, it is recommended to address the issue promptly to prevent potential fuel economy issues and further damage to the EVAP system.
6. How can I repair a P0455 code on my 2009 Nissan Altima Sedan?
Repair steps may include tightening or replacing the gas cap, repairing or replacing damaged EVAP system components, and clearing the trouble code with a scan tool after completing the repairs.
7. Will a P0455 code on a 2009 Nissan Altima Sedan affect fuel efficiency?
A P0455 code can potentially lead to decreased fuel efficiency due to the EVAP system not functioning optimally, causing fuel vapors to escape into the atmosphere.
8. How much does it typically cost to repair a P0455 code on a 2009 Nissan Altima Sedan?
The cost of repairing a P0455 code can vary depending on the root cause of the issue and the labor rates in your area. Simple fixes like a gas cap replacement may be relatively inexpensive, while more complex repairs could be more costly.
9. Can a DIY enthusiast fix a P0455 code on a 2009 Nissan Altima Sedan?
Depending on the cause of the P0455 code, some DIY enthusiasts with automotive repair experience may be able to address the issue themselves by following repair guides or tutorials.
10. How often does a P0455 code occur in a 2009 Nissan Altima Sedan?
The occurrence of a P0455 code can vary depending on factors like vehicle age, maintenance history, and driving conditions, but it is a relatively common code that can occur intermittently.
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